Air Sharing - Air Sharing lets you bring your documents with you — without bringing your computer.
Adobe Acrobat DC - Make your job easier with Adobe Acrobat DC, the trusted PDF creator. Use Acrobat to convert, edit and sign PDF files at your desk or on the go.
Printer Pro - Print attachments, receipts, documents, web pages from your iPad and iPhone.
Wondershare PDFelement - All-in-one PDF editor
Print - Developers of application solutions for the iPad & iPhone. 'Printing on the iPhone: “There's an App for that” - Print & Share' as featured in Apple's “Office” iPhone commercial
Foxit Reader - Foxit Reader is a free and light-weight multi-platform PDF document viewer.